GPA Calculator
Add each course's credit hours and grade to get your credit-weighted GPA on the standard 4.0 scale.
The formula
Weighted GPA = (sum of credit hours × grade points for each course) ÷ (total credit hours). This gives courses worth more credits a proportionally larger effect on the final average.
Worked example
Two courses — a 4-credit A (4.0) and a 3-credit B (3.0) — give (4 × 4.0 + 3 × 3.0) ÷ (4 + 3) = 25 ÷ 7 ≈ 3.57, not a simple average of 3.5, because the 4-credit course carries more weight.
A full semester
Five courses: Calculus, 4 credits, A- (3.7); Chemistry, 4 credits, B+ (3.3); English, 3 credits, B (3.0); History, 3 credits, A (4.0); and a 1-credit PE course with an A (4.0). The quality points are 14.8 + 13.2 + 9.0 + 12.0 + 4.0 = 53.0 across 15 credits, so the GPA is 53 ÷ 15 = 3.533. The small PE course barely moves it, while the two 4-credit courses dominate.
Combining semesters
Never average semester GPAs. If one term was 3.50 over 15 credits and the next 3.00 over 12 credits, the cumulative GPA is (52.5 + 36.0) ÷ 27 = 3.278, while the plain average of 3.50 and 3.00 would suggest 3.25. Enter every course from every term in the same list, and the weighting is handled for you.
What this tool does not do
- The dropdown offers the grades from A (4.0) to D (1.0) and F. There is no A+ or D-, so pick the nearest equivalent your school uses.
- Honors, AP and IB weighting (a 5.0 scale) is not applied; every grade is on the 4.0 scale shown.
- Pass/fail, withdrawn and audited courses usually carry no grade points, so leave them out of the list.
- Policies on repeated courses differ, and some schools replace the old grade while others average both.
- The result is not comparable to a 10-point CGPA, a UK degree classification, or German grades, which use different scales.
Frequently asked questions
What GPA scale does this use?
The default grade points follow the common US 4.0 scale (A = 4.0 down to F = 0.0). If your institution uses a different scale or grades such as A+, pick the closest option in the dropdown; the credit-weighting math is the same, but the result is only as accurate as that mapping.
Why are credit hours needed, not just grades?
A weighted GPA gives more influence to courses worth more credits, so a 4-credit A counts for more than a 1-credit A.
Does this calculate a cumulative GPA across multiple semesters?
Yes, as long as every course from every semester you want included is entered in one list.
How do honors and AP courses count?
Schools that weight them add a point, so an A in an AP course counts as 5.0. This calculator uses the standard 4.0 scale only, so it gives an unweighted GPA; ask your school for its weighted figure.
Should pass/fail and withdrawn courses be entered?
Generally no. Those courses usually don't carry grade points, so adding them would distort the average. Check your institution's policy for repeats and incompletes.